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Anettt [7]
3 years ago
15

PLZZZ HELP pictures down below

Mathematics
1 answer:
balu736 [363]3 years ago
5 0

Answer:

C

Step-by-step explanation:

We can multiply each equation by a constant so they'll equal either 15 or -15 since that is the LCM.

Since the answer choices want us to make the top a negative 15, we'll do that.

2x-5y=-21 \\ \\ 3(2x-5y)=(-21)*3 \\ \\ 6x-15y=-63

To make the y's cancel out, the second equation would have to have the y's coefficient equal 15.

Let's do that.

3x-3y=-18 \\ \\ -5(3x-3y)=(-18)*-5 \\ \\ -15x+15y=90

So the resulting equations are answer choice C.

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Answer:

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Step-by-step explanation:

1) apply perfect square formula

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2)remove parentheses

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simplify x+1+x^2-6 = x^2+2x-5

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Answer:

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In this question, we are required to find the total amount he paid to buy the shirt.

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Answer:

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